/*
A C++ program to accept ten numbers in ascending order using array.
and search for a number given by user using binary search method.
*/
#include<iostream.h>
#include<conio.h>
void main()
{ clrscr();
//Declare all variables.
int arr[10], i, initial, final, mid, data;
cout<<"Enter 10 numbers in ascending order ";
for( i = 0; i<10; i++)
{
cin >> arr[i];
}
cout<<"\nEnter the data to be searched : ";
cin >> data;
initial = 0;
final = 9;
mid = (initial + final)/2;
while( initial <= final) && (arr[mid] != data))
{
if( arr[mid] > data)
final = mid - 1;
else
initial = mid + 1;
}
if( arr[mid] == data)
cout<<"Data is present";
if(initial > final)
cout<<"Data is not present in the list";
getch();
}
---------------------------------------------------------------------------------------------------------------
/*
A C++ program to accept 10 numbers in an array and sort the numbers
in ascending order using Bubble sort method. Practical 15.
*/
#include<iostream.h>
#include<conio.h>
void main()
{ clrsrc();
//Declare all variables.
int arr[10], i, j , temp;
cout<<"Enter 10 numbers ";
for( i = 0; i<10; i++)
cin>> arr[i];
//Bubble sort.
for( i = 0; i <10; i++)
{
for(j = 0; j<10; j++)
{
if( arr[j] > arr[j +1])
{
//swap the two.
temp = arr[j];
arr[j] = arr[j+1];
arr[j+1] = temp;
}
}
}
cout<<"The sorted array is \n";
for( i =0; i < 10; i++)
cout<< arr[i]<<" ";
getch();
}
-------------------------------------------------------------------------------------------------------------
/*
A C++ program to accept 10 numbers in an array and sort the numbers
in ascending order using Selection sort method.
*/
#include<iostream.h>
#include<conio.h>
void main()
{ clrsrc();
//Declare all variables.
int arr[10], i, j, temp;
//prompt user to enter 10 numbers.
cout<<"Enter any 10 numbers ";
//Store the numbers in an array.
for( i =0; i<10; i++)
cin >> arr[i];
//Selection sort.
for( i = 0; i <10; i++)
{
for(j = 0; j<10; j++)
{
if( arr[i] > arr[j])
{
//swap the two.
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
}
cout<<"The sorted array is \n";
for( i =0; i < 10; i++)
cout<< arr[i]<<" ";
getch();
}
----------------------------------------------------------------------------------------------------
/*
A C++ program to insert a data in an array, at a given location or at its end.
*/
#include<iostream.h>
#include<conio.h>
void main()
{ clrscr();
//Declare all the variables.
int arr[20], i, loc, n, data;
//prompt user to enter the number of elements ";
cout<<"Enter the size of the array ";
//store size in 'n'.
cin >> n;
cout<<"Enter the array elements\n";
for( i =0; i<n; i++)
cin >> arr[i];
cout<<"enter the location after which the data is to be inserted \n";
cin >> loc;
//Shift all the elements after loc to the right of the array by one.
for( i = loc + 1; i < n - loc; i++)
{
arr[i+1] = arr[i];
}
cout<<"Enter data to be inserted at "<<loc;
cin >> arr[loc];
//Increment size by 1
n++;
cout<<"Array after insertion \n";
for( i =0; i<n ; i++)
cout<<arr[i]<<" ";
getch();
}
-------------------------------------------------------------------------------------------------------------
/*
A C++ program to delete a data in an array, at a given location or at its end.
*/
#include<iostream.h>
#include<conio.h>
void main()
{ clrscr();
//Declare all the variables.
int arr[20], i, loc, n, data;
//prompt user to enter the number of elements ";
cout<<"Enter the size of the array ";
//store size in 'n'.
cin >> n;
cout<<"Enter the array elements\n";
for( i =0; i<n; i++)
cin >> arr[i];
cout<<"enter the location after which the data is to be inserted \n";
cin >> loc;
//Shift all the elements after loc to the right of the array by one.
for( i = loc + 1; i < n - loc; i++)
{
arr[i+1] = arr[i];
}
cout<<"Enter data to be inserted at "<<loc;
cin >> arr[loc];
if( loc != 0)
{
//Shift all the elements after the location to the left by 1.
for (i = loc+1; i < n; i--)
{
arr[i] = arr[i + 1];
}
}
//Decrement size by 1
n--;
cout<<"Array after insertion \n";
for( i =0; i<n ; i++)
cout<<arr[i]<<" ";
getch();
}
----------------------------------------------------------------------------------------------------------------
/*
A C++ program to swap two numbers using call by value
and call by reference. Practical 11.
*/
#include<iostream.h>
#include<conio.h>
//Function prototype declaration for call by reference.
void swapReference(int *, int *);
void main()
{
clrscr();
//Declare all variables.
int a, b, temp, choice;
//Menu.
cout<<"Enter '1' for swapping using call by value \n";
cout<<"Enter '2' for swapping using call by reference \n";
cout<<"Enter '0' to exit \n";
//Menu options using switch statement.
switch(choice):
{
case 1:
cout<<"Enter any two numbers : \n";
cin >> a >> b;
cout<<"Before swap a = "<<a<<" b = "<<b;
temp = a;
a = b;
b = temp;
cout<<"\nAfter swap a = "<<a<<" b = "<<b;
break;
case 2:
cout<<"Enter any two numbers : \n";
cin >> a >> b;
cout<<"Before swap a = "<<a<<" b = "<<b;
swapReference(&a, &b);
cout<<"\nAfter swap a = "<<a<<" b = "<<b;
break;
case 0:
cout<<"Thank you\n";
break;
default:
cout<<"Invalid input! try again. \n";
}
getch();
}
//Function definition.
void swapReference(int * a, int *b)
{
int temp;
temp = *a;
*a = *b;
*b = temp;
}
--------------------------------------------------------------------------------------------------------
/*
A C++ program to print all the Pythagorean triplets between 1 and user given limit using
Turbo C++ compiler.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
//Declare int variables.
int a, b, c, sum = 0, limit;
//Prompt user to input upper limit.
cin>>limit;
for(a = 1; a<limit; a++)
{
for(b = 1; b<limit; b++)
{
for(c = 1; c<limit; c++)
{
if( a*a == (b*b + c*c) && (a+b+c) != sum)
{
//To filter duplicate triplets.
sum = a+b+c;
//Print the triplets.
cout<<a<<" "<<b<<" "<<c<<endl;
}
}
}
}
getch();
}
--------------------------------------------------------------------------------------------------
/*
A C++ program to count the number of characters and words in a sentence entered by user.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int chars=0, words = 1;
char c;
while((c=getche()) != '\r')
{
if(c == ' ')
words++;
else
chars++;
}
cout<<"Number of characters "<<chars;
cout<<"\nNumber of words "<<words;
getch();
}
----------------------------------------------------------------------------------------------------------------------
/*
A C++ program to return cube of a number using inline function.
*/
#include<iostream.h>
#include<conio.h>
//Declare the inline function.
inline int cube(int a)
{
return a*a*a;
}
void main()
{
clrscr();
//Declare all variables.
int number, cube;
//Prompt user to enter a number.
cout<<"Enter a number ";
//Store user input in the integer variable 'number'.
cin>>number;
//Pass number as argument to the inline function 'cube()'.
cube = cube(number);
cout<<"The cube of the number is :"<<cube;
getch();
}
-------------------------------------------------------------------------------------------------------------------
/*
A C++ program to convert all upper case letters of a word to
lower case and vice-versa.
*/
#include<iostream.h>
#include<conio.h>
#include<ctype.h>
void main()
{
clrscr();
//Declare all variables.
int i=0, j=0;
char word[50];
//prompt user to enter a word.
cout<<"Enter a word ";
cin>>word;
//Replace lower case with upper and vice-versa.
while(word[i] != '\0')
{
if( isupper(word[i]))
{
word[i] = tolower(word[i]);
i++;
}
else
{
word[i] = toupper(word[i]);
i++;
}
}
//Print the new word with case reversed.
while( word[j] != '\0')
{
cout<<word[j];
j++;
}
getch();
}
--------------------------------------------------------------------------------------------------------------------
/*
A C++ program to get maximum of given numbers.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int max, i;
A[5] = {12,54,6,99,2};
max = A[0];
for(i=1; i<5; i++)
{
if max < A[i];
{
max = A[i];
}
}
cout<<"The maximum value is "<<max;
getch();
}
-----------------------------------------------------------------------------------------------------------------
/*
A C++ program to get minimum of given numbers.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int min, i;
A[5] = {12,54,6,99,2};
min = A[0];
for(i=1; i<5; i++)
{
if min > A[i];
{
min = A[i];
}
}
cout<<"The minimum value is "<<min;
getch();
}
-------------------------------------------------------------------------------------------------------------------
/*
A C++ program to reverse a number using pointers. Practical 22.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
//Declare all variables.
int digit;
long int num;
//Declare a pointer variable 'p' that points to num.
long int * p = #
//Prompt user to enter a number.
cout<<"Enter a number : ";
//Store user input in num.
cin >> num;
//Separate the digits of num from end and print them on screen.
while(num % 10)
{
digit = (* p) % 10;
//Print the last digit first.
cout<<digit;
//Drop the last digit of num.
* p = (* p)/10;
}
getch();
}
------------------------------------------------------------------------------------------------------------------
/*
A C++ program to accept an integer array of size 10 . Display the
squares of all the elements by using pointer to array. Practical 23.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
//Declare variables.
int arr[10], i = 0;
//Prompt user to enter 10 integers.
cout<<"Enter 10 integers : ";
//Store all the integers in the array.
for( i = 0; i<10; i++)
{
cin >> arr[i];
}
//Display the squares of all elements using pointer to array.
for( i = 0; i<10; i++)
{
cout<<(*(arr + i))*(*(arr + i))<<" ";
}
getch();
}
--------------------------------------------------------------------------------------------------------------------
/*
A C++ program to accept a 4x4 matrix and find the sum of
the odd numbers of the matrix. Practical 17.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
//Declare variables.
int matrix[4][4], i =0 , j =0, sum = 0;
//Prompt user to enter a 4x4 matrix.
cout<<"Enter a 4x4 matix : \n";
//Store the user input in the 2-D array 'matrix'.
for( i = 0; i<4; i++)
{
for(j =0; j<4 ; j++)
{
cin >> matrix[i][j];
}
}
//Sum all the odd numbers of the matrix.
for( i = 0; i<4; i++)
{
for(j =0; j<4 ; j++)
{
if( matrix[i][j] % 2 != 0)
{
sum = sum + matrix[i][j];
}
}
}
//Display the sum.
cout<<"Sum of odd numbers of matrix : "<<sum;
getch();
}
----------------------------------------------------------------------------------------------------------------
//A C++ program to create a class with given members. Practical 19.
#include<iostream.h>
#include<conio.h>
#include<string.h>
//Define the class.
class Competition
{
private:
int learner_id;
string learner_name;
char category[6];
string competition_name;
int position;
int points;
public:
//Define a function that returns points.
int points( int position)
{
switch(position)
{
case 1:
points = 10;
break;
case 2:
points = 7;
break;
case 3:
points = 5;
break;
default:
points = 0;
}
return points;
}
}; //End of class definition.
void main()
{
clrscr();
//Create objects of the class.
Competition comp;
//Access class member functions using dot operator.
comp.points(7);
getch();
}
-----------------------------------------------------------------------------------------------------------------------
// Derived class , practical 20.
#include<iostream.h>
#include<conio.h>
#include<string.h>
//Define the class COURSE.
class COURSE
{
//Declare all the private data members of the class.
private:
int course_id;
string course_name;
int duration;
float fee;
//Declare and define all the public member functions of the class.
public:
void accept(int course_id, string course_name, int duration, float fee)
{
this.course_id = course_id;
this.course_name = course_name;
this.duration = duration;
this.fee = fee;
}
};
//Define the publically inherited derived class SR_SECONDARY.
class SR_SECONDARY : public COURSE
{
//Declare private data members of the class.
private:
string subject1;
string subject2;
string subject3;
//Declare and define all the public member functions of the class.
public:
void enter(string subject1, string subject2, string subject3)
{
this.subject1 = subject1;
this.subject2 = subject2;
this.subject3 = subject3;
}
void display()
{
cout<<"Subject1 : "<<subject1<<'\n';
cout<<"Subject2 : "<<subject2<<'\n';
cout<<"Subject3 : "<<subject3<<'\n';
}
};
//Define the protectedly derived class VOCATIONAL from the class SR_SECONDARY.
class VOCATIONAL : protected SR_SECONDARY
{
//Declare all private data members of the class.
private:
string voc_name;
string requirement;
int age;
//Declare and define all public member functions of the class.
public:
void voc_accept(string voc_name, string requirement, int age)
{
this.voc_name = voc_name;
this.requirement = requirement;
this.age = age;
}
void voc_display()
{
cout<<"Vocationa Name : "<<voc_name<<'\n';
cout<<"Requirement : "<<requirement<<'\n';
cout<<"Age : "<<age;
}
};
void main()
{
clrscr();
//Create objects of all the classes and invoke respective member functions.
COURSE cr;
cr.accept(1, "BCA", 3, 12000.00);
SR_SECONDARY sr;
sr.enter("Maths", "Data Structues", "Algorithms");
sr.display();
VOCATIONAL vc;
vc.voc_accept("Music", "High School", 16);
vc.voc_display();
getch();
}
----------------------------------------------------------------------------------------------------------------
/*
A C++ program to find the area of a triangle, given its three sides by the user.
*/
#include<conio.h>
#include<iostream.h>
#include<math.h>
void main()
{
clrscr();
//declare all variables.
float a, b, c, s, A;
//Prompt user to input three sides of the triangle.
cout<<"Enter the three sides of the triangle :";
//store user input.
cin>>a>>b>>c;
//Calculate the semi-perimeter.
s = (a+b+c)/2;
//Calculate the area of the triangle using Heron's formula.
A = sqrt( s*(s-a)*(s-b)*(s-c))
//Print area on the screen.
cout<<"\nArea of the triangles is :"<<A;
getch();
}
------------------------------------------------------------------------------------------------------------
/*
A C++ program to check if a number given by user is an Armstrong number.
*/
#include <math.h>
#include<conio.h>
#include<iostream.h>
void main() {
//Declare variables.
int num, originalNum, remainder, n = 0;
float result = 0.0;
printf("Enter an integer: ");
//Store number entered by user in integer variable 'num'.
scanf("%d", &num);
//Store value of 'num' into variable 'originalNum'
originalNum = num;
// store the number of digits in num in variable 'n'.
for (originalNum = num; originalNum != 0; ++n)
{
originalNum /= 10;
}
//Extract the digits of 'num', and raise to power 'n' and get their sum.
for (originalNum = num; originalNum != 0; originalNum /= 10)
{
remainder = originalNum % 10;
// store the sum of the power of individual digits in result
result += pow(remainder, n);
}
// if num is equal to result, the number is an Armstrong number
if ((int)result == num)
{
printf("%d is an Armstrong number.", num);
}
else
{
printf("%d is not an Armstrong number.", num);
}
}
-----------------------------------------------------------------------------------------------------------------------------
/*
A C++ program to write the factorial of a number.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
//Declare all the variables.
int n, f=1, i=1;
//prompt user to enter a positive number.
cout<<"Enter a positive number :";
//store user input into 'n'.
cin>>n;
//Compute the factorial and store its value in 'f'.
while(i <= n)
{
f = f*i;
i++;
}
//Print the factorial on screen.
cout<<"Factorial of "<<n<<" = "<<f <<endl;
getch();
}
-----------------------------------------------------------------------------------------------------------
/*
A C++ program to print the Fibonnaci series upto the nth term.
*/
#include <iostream.h>
#include<conio.h>
void main()
{
//clear screen.
clrscr();
//Declare all the variables.
int n, t1 = 0, t2 = 1, nextTerm = 0;
//Prompt user to enter the number of terms to be printed.
cout << "Enter the number of terms: ";
//Store the term in variable 'n'.
cin >> n;
//Print "Fibonnaci Series" on the screen.
cout << "Fibonacci Series: ";
//For loop to print the series.
for (int i = 1; i <= n; ++i)
{
// Prints the first two terms.
if(i == 1)
{
cout << t1 << ", ";
continue;
}
if(i == 2)
{
cout << t2 << ", ";
continue;
}
//Sum of the last two terms becomes the next term.
nextTerm = t1 + t2;
//The previous term becomes the first term for the next term.
t1 = t2;
//The new term becomes the second term for the next term.
t2 = nextTerm;
//Print the terms of the series on the screen.
cout << nextTerm << ", ";
}
getch();
}
--------------------------------------------------------------------------------------------------------------
/*
A C++ program to find the GCD/HCF of two positive numbers.
*/
#include<iostream.h>
#include<math.h>
#include<conio.h>
int main()
{
//clrscr();
//Declare all variables.
int a, b, result;
//Prompt user to input two positive numbers.
cout<<"Enter any two positive numbers :";
//Store user inputs
cin>>a>>b;
//Find Minimum of a and b
result = min(a, b);
while (result > 0)
{
if (a % result == 0 && b % result == 0)
{
break;
}
result--;
}
// Return gcd of a and b
cout<<"GCD of "<<a<<" and "<<b<<" is "<<result;
//getch();
}
-------------------------------------------------------------------------------------
/*
A C++ program to check if the given number is a prime number.
*/
#include <iostream.h>
#include<conio.h>
void main() {
//Clear screen.
clrscr();
//Declare all the variables.
int i, n;
bool is_prime = true;
//Prompt user to enter a positive integer.
cout << "Enter a positive integer: ";
//Put user input into variable 'n'.
cin >> n;
// 0 and 1 are not prime numbers
if (n == 0 || n == 1)
{
is_prime = false;
}
// loop to check if n is prime
for (i = 2; i <= n/2; ++i)
{
if (n % i == 0)
{
is_prime = false;
break;
}
}
if (is_prime)
{
cout << n << " is a prime number";
}
else
{
cout << n << " is not a prime number";
}
getch();
}
--------------------------------------------------------------------------------------------------------
/*
A C++ program to print the table of 'n'.
*/
#include <iostream.h>
#include<conio.h>
void main()
{
//Clear the screen.
clrscr();
//Declare all the variables.
int i, n;
//prompt user to input a number.
cout<<"Please enter a integer number "<<endl;
//Store user input into 'n'.
cin>>n;
//Print the table.
for(i = 1; i<= 10; i++)
{
cout<<"n x "<<i<<" = "<<n*i<<endl;
}
getch();
}
------------------------------------------------------------------------------------------------
/*
A C++ program to print all the Pythagorean triplets between 1 and user given limit.
*/
#include<iostream.h>
#include<conio.h>
void main()
{
//Declare int variables.
int a, b, c, sum = 0, limit;
//Prompt user to input upper limit.
cin>>limit;
for(a = 1; a<limit; a++)
{
for(b = 1; b<limit; b++)
{
for(c = 1; c<limit; c++)
{
if( a*a == (b*b + c*c) && (a+b+c) != sum)
{
//To filter duplicate triplets.
sum = a+b+c;
//Print the triplets.
cout<<a<<" "<<b<<" "<<c<<endl;
}
}
}
}
getch();
}
--------------------------------------------------------------------------------------------------
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